2012-04-19 14:35:52 +08:00
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/* libs/graphics/animator/SkAnimateActive.h
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**
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** Copyright 2006, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef SkAnimateActive_DEFINED
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#define SkAnimateActive_DEFINED
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#include "SkDisplayApply.h"
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#include "SkOperandInterpolator.h"
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#include "SkIntArray.h"
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class SkAnimateMaker;
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class SkActive {
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public:
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SkActive(SkApply& , SkAnimateMaker& );
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~SkActive();
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void advance();
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void append(SkApply* );
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void calcDurations(int index);
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void create(SkDrawable* scope, SkMSec time);
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bool draw() { return immediate(false); }
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bool enable() { return immediate(true); }
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void init( );
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SkMSec getTime(SkMSec inTime, int animatorIndex);
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void pickUp(SkActive* existing);
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void reset() { fDrawIndex = 0; }
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void setInterpolator(int index, SkOperand* from);
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void start();
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#ifdef SK_DEBUG
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void validate();
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#endif
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private:
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void appendSave(int oldCount);
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void fixInterpolator(SkBool save);
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bool immediate(bool enable);
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bool initializeSave();
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void initState(SkApply* , int offset);
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void resetInterpolators();
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void resetState();
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void restoreInterpolatorValues(int index);
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void saveInterpolatorValues(int index);
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void setSteps(int steps);
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struct SkState {
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// void bumpSave();
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SkMSec getRelativeTime(SkMSec time);
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SkApply::Mode fMode;
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SkApply::Transition fTransition;
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SkBool8 fPickup;
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SkBool8 fRestore;
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SkBool8 fStarted;
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SkBool8 fUnpostedEndEvent;
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int32_t fSteps;
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SkMSec fBegin;
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SkMSec fStartTime;
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SkMSec fDuration;
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SkMSec fSave;
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SkMSec fTicks;
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};
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SkActive& operator= (const SkActive& );
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SkTDArray<SkOperandInterpolator*> fInterpolators;
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SkApply& fApply;
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SkTDArray<SkState> fState; // one per animator
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SkTDOperandPtrArray fSaveRestore; // if apply has restore="true"
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SkTDOperandPtrArray fSaveInterpolators;
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SkTDAnimateArray fAnimators;
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SkMSec fMaxTime; // greatest of all animation durations; only used by immediate mode
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SkAnimateMaker& fMaker;
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int fDrawIndex;
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int fDrawMax;
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friend class SkApply;
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};
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#endif // SkAnimateActive_DEFINED
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